Rail-joint.



P .m. mm u.. TL Ku am APPLICATION FILED MAR.5, 1906.

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UNITED STATES PATENT OFFICE.

RAIL-JOINT.

ivo. 821,420.

Specification of Letters Patent.

ratentecl May 22, 1906.

Application filed March 5 1906. Serial No. 304,325.

To all whom it may concern:

Be it known that I, EwALD KILLING, a subject of the King of Prussia, German Emperor, residing at Hagen, in the Empire of Germany, have invented certain new and useful Improvements in Rail-Joints, of which the following is a specification.

The subject of this invention is an improved railejoint, the peculiarity of which consists in that the rails, which are held together in the usual way by fish-plates ar,- ranged on both sides, are mortised to ether and at the same time decrease somew at in height toward the end. By this means a shockless passage of the wheels over the railjoints is attained with certainty, since by reason of the formation of the rails as above described, notwithstanding the bending up and down of the ends thereof, impact of the wheel on leaving one rail against the head end of the other rail is precluded.

The subject of the invention is shown, by way of example, in the drawings.

Figure 1 shows the rail-joint in side elevation, Fig. 2 in plan, and Fig. 3 in cross-sec tion on theline A A, Fig. 1, while Figs. 4 and 5 are cross-sections through the rail ends to be connected.

a and l; are the two rails to be connected, of which the first, a, is slotted at the end over a deiinite length, the whole central web being removed, while of the other rail b the lateral parts of the head and of the base or iiange are removed over a corresponding length. Thus a tenon b of the thickness of the web is formed. This tenon b decreases somewhat in height toward its free end, and this is likewise the case with the head parts of the rail a, which are left standing.

In order to form the rail-joint, the tenon b on the rail l) is inserted into the slotted end of the rail a, and then the joint between the two is made by means of fish-plates c d, arranged on both sides and provided with bolts e. As can be seen, in this rail-joint there is no sudden passage of the wheels from one to the other rail; but the wheels before leaving one rail are carried by the next. By this means, as already mentioned at the beginning of the specification, the bending u and down of the ends of the rails is rendere harmless by the diminution in the height of the rails toward the ends.

The fish-plates c'd are preferably formed so that they lie at the bottom against the base or flange ofthe rail and at the top against the head of the rail in order that they may support the free lateral head parts on the slotted end of the rail and secure them against bending downward.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. A mortised rail-joint in which the coacting parts of the rails to be joined are made of grzduallydecreasing height toward their en s.

2. A rail-joint comprising a rail end provided with a recess and a rail end provided with a projection fitting into said recess, the coacting parts of the rails being gradually tal pered downward toward their ends below the running-surface of the rails, and means for securing said rails together.

3. A rail-joint comprising a rail end rovided with a central recess of substantlally the width of the rail-web and a rail end provided with a tenon fitting into said recess, the coacting parts of the rails being gradually tapered toward their ends below the runningsurface of the rails, fish-plates engaging the sides of said rails, and bolts extending through said fish-plates and rails.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

EWALD KILLING.

Witnesses WILLIAM EssENwEIN, PETER LIEBER. 

